Closing and cleaning attachment for extensible window screens



F. SIKEN Nov. 16, 1943.

CLOSING AND CLEANING ATTACHMENT FOR EXTENSILE WINDOW SCREENS Filed June 30, 1942 lill l 3mm/vbo@ Frank Hilfen.

views of the drawing.

rCaos invention relates to window-screenaland especiallylto a closing i and cleaningVr :attachment -for extensibleWindow-screens;l fi: f i

' 1 Oneobject `oi" this invention is number of openings through which-large insects vcan pass fromoutside'to inside a` buildingin which the screenis installed.

" Another object Yis to 'providea practical and elective means by lwhich'lthe wire inetting canA becleane'd or brushed-bythe simple operationof interengage'd framesof the screen. 1-

j alternately extending Vand Acollapsing theV slidably Another Yobject Vis Lto'provide-1.= m:-attahrnht' that effects both lof the f above-nentioned'fiunc'- tions whenproperly-attached fand operated A'and which can be attached'byflanyperson oi?l ordinary ability and without usingY any tool or device for.

rdoing so'.` Y ,Y

Other objects are pointed out orimpliedin theV following details of description, in connection with the accompanying drawing in which:

Patentedy Nov.'16f,` 1943 c' Y fixlfiffi INGAND CLEANING ATTACHMENT FOR f EXTENSVIBLEwmDow SCREENS to overcomela defect in Vall `extensible` window-screens known v; to the inventon vizf.; afdefe'ct'ii-th'at includesa applied on fthe' louter: `framefwhen Vnot ,f attached on` .both inner andouter. frames, fori iff attached onlyonfthe innerfsidegfinsects could enterbetween theitwolshetsfof.wire netting andlfprob Y 'ably die therein. f -The description-of? dneasuch atvention; .and it should :be lunderstoodiifthatltwo A metal strip that is folded over Vthe adjacent edge Fig. 1 is a front elevation of an extensible windoW-screenhaving one of my closing andibrushing attachments in its Vnormal position and secured thereon. f

Fig.i 2 is a greatlyvenlarged fragmental sec-A` tional view,the section being taken at line 2-2 of Fig. 1.

Fig. 3 is a fragmental sectional view along the j line 3 3 of Fig. 2,` the normally upright orvvertical elements being yhere disposed Vhorizontally and being broken oi at different distances :from their ends for rendering partstof all the vertical elements visible. u Y Y 'f Fig. 4 is a cross-sectional View of a modified form of brush and its attaching means, or springclasp and one of the frame-engaging'longitudinal extensionsthat enter upper and lower slots in either one of the'interengagedframes.

Fig. 5 is a fragmental sectionaly view showing one end portion of each of two attachments that include the modied form of brush and attaching means such as is shown in Fig. 4.

Referring to the drawing in-detail: similarreference numerals refer to similar parts throughout the written description and in the-several Though the two slidably` interengaged screenframes are substantialcounterparts, and,v neither one is wholly inner or outer, the one having my attachment thereon in Figs. 1, 2 and 3, will be designated as the outer one, and the other-one as the inner; the attachment being Preferably ofsuch devices' on an extensible window-screen l are needed l onlyffonbrushinglbothf sheetsi of wirenetting.: and not: for iclosingjlnsect-passagesgi one Y Each C'neof the screen-frames includes :upper f r and lowerqelements @1I Il that are longitudinally slottedA at :I I1toireeivef` `@mdf-.contain fthe', upper Vand lower edges.ofthei'wireenettingI'2" and A'also to contain:` the? ends ioff"aenomally" verticalrbar" 'I3,the' one at. the right in" Fig.' `1 -beinglv'partly' covered'rby aflateralf extension bfg a l'special Vform of *brushV that "willlbe desbribedrlaternit As seen .in f Fig:"2;.thel1barl- I^31is composedroff' a sheetof wire-netting and has its main intermediate `part bent longitudinally in semblanceof an an- Vgle beam whose flange I4 extends approximately,

to the wire-nettingpof the companion or interengaged screen-wireor ,wire-nettingybut it is i seen that this iiange I4 does notV extend to either thel upper or Vlower frame-elf-:mentv I0, Vso'` there is a large opening I5 at each Vend of eachvertical bar I3 through which can'enter large flies, bees,

beetles, etc. Moreover, it is well known that wirenetting in screens often sags or bulges, and where it bulges away from the vertical beam I3; insectsA can enter betweenv the flange I4 and the thusl bulged portion of `wire-netting.`v

My invention overcomes the lforegoing defects by providing a brushy that extends from the upper frame-element I0 :to the lower frame-element I0 while it is Vfitted against the end-portions IB, but thereby spaced from the main intermediatek portions or flanges I4, so a special `form of brush-head or lateral extension is needed to completely close the openings referred to. The

`brush-headV may be of sheet-metal, as at Il (Figs. 1, 2, 3), or of wood- 0r other appropriate material, as shown at Ila (Figs/.1.,` 5). These brushheads are providedV with lateral extensions I8` Vand Ia, respectivelyl that areof sheet metal 1 p `in the form of a strip. that normally overlies thev I space and joint between the brush-head andthe nearby ange I4 and end-portions IB, such strip being of such length that it normally extends from the upper to the lower frame elementV I0, so it combines with the brush to effectively close the space vand openings referred to;

for the bristles f|9 of the brush are of proper length' to extend to and through the wire netting, even where the latter is considerably bulged `or sagged. The brush-head I1 may include a length of Wire I'I extending longitudinally through thebristle-clamping part of the brushhead and beyond the latter at opposite ends to form frame-engaging elements thatextend into Vvthe slots andncombine with a hook prwspringy l lateral extension 181; that canrgbe':

, l l Sed OPYQ' ject th'ough'the wire netting and `snap over vthe adjacent edge of the upright bar I3 and ,coin-v i bine with other elements of the strip I i! or IBd to form a clasp that clamps er mh# joining upright bar I3.`

,l Y l 2,334,450 l lled with a sheet of wire-netting and each havstrip has end-portions folded inward to, dcuible?` c the thickness vso as to more nearly ccnf'orrntd` thei width nf the',slotitis-iseatedlr1;.aridea1l enddexterfsion may .be `prinzided .with one crc-more stmlckenp teeth o1: inclinedispursfl lathe .inclinar tiomioeng :suchthat ,by a lateral: moi/.ement vof the verticali brush; klit'sentiv-extensirirl'sman, be slid intotheiendsi of slotsamiiV be; secured' inxnormalposit'ron by theshannends :orap'exes 1111-, -is fmte .understood that magneet-netting is shown .conventionaliift-giand.:soy ,are :the brush- Fbristles,l and that the latter termlisfgused in its broadest' kani-L,doesnnot conflneethe, inventioxttb'animal d nristlxes;l Moreover 4,the invention is not limited(toltheprecisadetails descrbecland shbmngfor: itllsisusceptiblepffnumerous; changes l Awil-.icinzthe scope of; thednventime ideasas yinnlzilied andla-irned. f 1

ing a normally vertical bar that extends across the Wire-netting of the adjoining window-screen-V frame; and an attachment comprising the subcombination of a brush having bristles substantially throughout its length and normally extending from top tov bottom of the exposed part of. either sheet of Wire-netting;r and means on said loruslii toursecure the latter against the bar ofeith'errtrame whileiits .bristles extend toward and 'through portions'j of "the kwire-netting of the .other frame, for purposes specified.

2. In the 'combination defined in @1mm 1,"said n 'A' jcbmpiaisinga spring-clasp adapted to exy v,

grip said Vertical bar of eitherV `one fof ssaid screen-frames, and brush-end extensions"'adapt ed to engage with the upper and iowerfpmftibnsnf vthe frame and to combine with saidspringdclasp in attaching the brush with maximum stability.

fifa. definirsii in]claimY l; said y -materialyunited 1 meansgccnrprisinsgasl'rinoi-sheet with said brush aringlaterflrpwiectwn, the same .length o` stabill blt-lash fwd.- adapted-t0 avertie oren between. i

brushgand arlinriinsfbar and haringtheagenda -hoolgfor-engagennt; withtheside; of, tbefbar opppsite to theside atvwhihtsaidbrush 15209 be placed.

, 4, The attachme adapted im besngpped ravertir: edge 0i seid remote from saidlbrushfharnglede l eatensicmsdapteztolenter the @ndleyer portions. isaid .frame Iwird te', cooperate 'tfriiina "byclaimfilasaid comprising @.latmelpreiection-untedwith the brush andyterrnniatins; a; srrnsyxoek 

